[Dovecot] spf record

[Udo Rader]

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Matt wrote:
>> But as a matter of fact, I got corrected. The major problem with even
>> scoring is that the only things spammers have to do (and they really do
>> it!) is to register some new domain, enter valid SPF records for it and
>> then their scoring might even improve.
> 
> DKIM and domainkeys are really no better in that respect.  Spammers
> typically do not go through that much effort though.

yes, IMHO this entire sender verification thing (whatever that may be)
is quite useless when it comes to prevent spamming but is quite useful
when it comes to prevent phishing.

That's why we don't use it even for spam scoring anymore. It is not
worth the resources, IMHO again at least :-)

- --
Udo Rader
http://www.bestsolution.at

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